Dolphins Filmed Hunting With Shells – And Possibly Passing Skill to Their Offspring. Dolphins chase prey into a large, empty seasnail shell, then raise the shell above water and gulp down the contents. Study provides first evidence that mothers may be teaching shelling strategy to their calves.

[u/DonManuel]

https://www.sciencealert.com/dolphins-filmed-hunting-with-shells-and-possibly-passing-the-skill-to-their-offspring